/*
  Visual layer for the portfolio style study.
  Themes share one DOM and one content source:
  - liquid-glass is a web approximation using backdrop-filter and layered highlights
  - neumorphism uses raised and inset surfaces on an opaque background
  Radius rule: 24px panels, 12px small surfaces, pill controls, circular portrait.
*/

:root {
  color-scheme: dark;
  --radius-panel: 24px;
  --radius-surface: 12px;
  --spring-ease: cubic-bezier(0.22, 1.35, 0.36, 1);
  --focus-ring: 0 0 0 3px rgba(69, 180, 141, 0.28);
}

@supports (animation-timing-function: linear(0, 1)) {
  :root {
    --spring-ease: linear(
      0, 0.009, 0.035 2.1%, 0.141 4.4%, 0.723 12.9%, 1.05 18%,
      1.13 22.2%, 1.125 26.4%, 1.075 31.7%, 1.008 40.4%,
      0.976 49.5%, 0.987 61.3%, 1.003 73.7%, 1
    );
  }
}

html {
  background: var(--color-bg);
}

body {
  min-width: 320px;
  min-height: 100dvh;
  overflow-x: clip;
  isolation: isolate;
  background: var(--color-bg);
  transition: background-color 320ms ease, color 320ms ease;
}

a,
button {
  -webkit-tap-highlight-color: transparent;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-accent-2);
  outline-offset: 4px;
  box-shadow: var(--focus-ring);
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 500;
  padding: 9px 14px;
  border-radius: 999px;
  color: var(--color-on-accent);
  background: var(--color-accent-2);
  font-size: 13px;
  font-weight: 700;
  transform: translateY(-160%);
  transition: transform 420ms var(--spring-ease);
}

.skip-link:focus {
  transform: translateY(0);
}

.ambient-field {
  position: fixed;
  inset: 0;
  z-index: -2;
  overflow: hidden;
  pointer-events: none;
}

.ambient-field::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(7, 9, 12, 0.18), rgba(7, 9, 12, 0.82)),
    radial-gradient(circle at 50% 0%, transparent, rgba(6, 7, 9, 0.5) 72%);
}

.ambient-orb {
  position: absolute;
  width: 48vw;
  aspect-ratio: 1;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.2;
  will-change: transform;
}

.ambient-orb--green {
  top: -14vw;
  right: -12vw;
  background: #45b48d;
  animation: material-drift-a 18s ease-in-out infinite alternate;
}

.ambient-orb--gold {
  top: 36vh;
  left: -22vw;
  background: #d1bfae;
  animation: material-drift-b 22s ease-in-out infinite alternate;
}

@keyframes material-drift-a {
  from { transform: translate3d(0, 0, 0) scale(0.94); }
  to { transform: translate3d(-10vw, 16vh, 0) scale(1.08); }
}

@keyframes material-drift-b {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(14vw, -10vh, 0) scale(0.9); }
}

main {
  position: relative;
  z-index: 1;
}

nav {
  padding: 12px 0;
  border-bottom: 0;
}

nav.scrolled {
  border-bottom-color: transparent;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}

nav .container {
  min-height: 46px;
  padding: 10px 18px;
  border-radius: 999px;
  transition: background 280ms ease, border-color 280ms ease, box-shadow 280ms ease;
}

.nav-links a {
  position: relative;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: -5px;
  height: 1px;
  background: var(--color-accent-2);
  transition: right 420ms var(--spring-ease);
}

.nav-links a:focus-visible::after {
  right: 0;
}

section {
  scroll-margin-top: 82px;
}

section + section {
  border-top-color: rgba(255, 255, 255, 0.07);
}

#hero {
  min-height: calc(100dvh - 70px);
  display: flex;
  align-items: center;
  padding: 52px 0 74px;
  border-bottom: 0;
}

#hero .container {
  width: calc(100% - 32px);
  max-width: 1080px;
  padding: 46px;
  border-radius: var(--radius-panel);
}

.hero-inner {
  align-items: center;
}

.hero-name {
  text-wrap: balance;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.07);
}

.hero-tagline {
  width: fit-content;
  min-height: 1.6em;
  font-family: var(--font-mono);
  font-size: clamp(12px, 1.5vw, 14px);
  font-variant-numeric: tabular-nums;
  cursor: default;
}

.hero-tagline,
.hero-open,
.hero-stats span {
  white-space: nowrap;
}

.hero-bio {
  text-wrap: pretty;
}

.scramble-text [aria-hidden="true"] {
  white-space: pre-wrap;
}

.hero-open::before {
  box-shadow: 0 0 0 4px rgba(69, 180, 141, 0.12);
}

.hero-photo-button {
  display: block;
  border-radius: 50%;
  transition: transform 620ms var(--spring-ease);
}

.hero-photo-button:active {
  transform: translateY(1px) scale(0.97);
}

.hero-photo {
  width: 186px;
  height: 186px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.28),
    0 22px 54px rgba(4, 5, 8, 0.42);
}

.cta-pill,
.project-card,
.cert-item,
.skill-tag,
.chip,
.metric {
  transition-timing-function: var(--spring-ease);
}

.cta-pill {
  min-height: 40px;
  white-space: nowrap;
  transition:
    transform 520ms var(--spring-ease),
    color 180ms ease,
    background 180ms ease,
    border-color 180ms ease,
    box-shadow 280ms ease;
}

.cta-pill:active {
  transform: translateY(1px) scale(0.96);
}

.skill-tag {
  position: relative;
  transform: translateY(0) scale(1);
  transform-origin: center bottom;
  transition:
    transform 560ms var(--spring-ease),
    color 180ms ease,
    background 180ms ease,
    border-color 180ms ease,
    box-shadow 240ms ease;
}

.skill-tag:active {
  transform: translateY(-3px) scale(1.06);
}

.project-grid {
  gap: 24px;
}

.project-card {
  border-radius: var(--radius-panel);
  padding: 30px;
  transition:
    transform 680ms var(--spring-ease),
    box-shadow 300ms ease,
    border-color 240ms ease,
    background 240ms ease;
}

.project-card:active {
  transform: translateY(-1px) scale(0.992);
}

.project-card--featured::after {
  left: 28px;
  right: 28px;
  top: 0;
  height: 1px;
  opacity: 0.95;
}

.chip,
.metric,
.skill-tag,
.featured-badge {
  border-radius: 999px;
}

.timeline-line::before {
  box-shadow: 0 0 0 5px rgba(69, 180, 141, 0.1);
}

.cert-item {
  border-radius: var(--radius-surface);
}

.fete-icon,
.clay-table,
.jams-turntable {
  border-radius: var(--radius-surface);
}

/* One content-bearing marquee, duplicated exactly once for a seamless loop. */
.capability-marquee {
  padding: 24px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  overflow: hidden;
}

.marquee-window {
  width: min(100%, 1040px);
  margin: 0 auto;
  overflow: hidden;
  mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
}

.marquee-track {
  display: flex;
  width: max-content;
  animation: marquee-scroll 32s linear infinite;
  will-change: transform;
}

.marquee-window:focus-within .marquee-track {
  animation-play-state: paused;
}

.marquee-group {
  display: flex;
  flex-shrink: 0;
  align-items: center;
  gap: 10px;
  padding-right: 10px;
}

.marquee-group span {
  padding: 8px 14px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  color: var(--color-muted);
  background: var(--color-surface);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
}

@keyframes marquee-scroll {
  to { transform: translateX(-50%); }
}

/* Native dialog lightbox with a material surface and spring-shaped entry. */
.lightbox {
  width: min(1080px, calc(100vw - 28px));
  max-width: none;
  max-height: calc(100dvh - 28px);
  margin: auto;
  padding: 0;
  border: 0;
  border-radius: var(--radius-panel);
  color: var(--color-text);
  background: transparent;
  opacity: 0;
  transform: scale(0.92) translateY(18px);
  transition:
    opacity 180ms ease,
    transform 620ms var(--spring-ease),
    display 180ms allow-discrete,
    overlay 180ms allow-discrete;
  overflow: visible;
}

.lightbox[open] {
  opacity: 1;
  transform: scale(1) translateY(0);
}

@starting-style {
  .lightbox[open] {
    opacity: 0;
    transform: scale(0.92) translateY(18px);
  }
}

.lightbox.closing {
  opacity: 0;
  transform: scale(0.96) translateY(10px);
  transition-duration: 180ms;
  transition-timing-function: ease-in;
}

.lightbox::backdrop {
  background: rgba(7, 8, 11, 0.82);
  backdrop-filter: blur(16px) saturate(120%);
  -webkit-backdrop-filter: blur(16px) saturate(120%);
  opacity: 0;
  transition:
    opacity 180ms ease,
    display 180ms allow-discrete,
    overlay 180ms allow-discrete;
}

.lightbox[open]::backdrop {
  opacity: 1;
}

.lightbox.closing::backdrop {
  opacity: 0;
}

@starting-style {
  .lightbox[open]::backdrop {
    opacity: 0;
  }
}

.lightbox-shell {
  position: relative;
  display: grid;
  grid-template-columns: 56px minmax(0, 1fr) 56px;
  align-items: center;
  gap: 14px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: inherit;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.035)),
    rgba(18, 20, 25, 0.78);
  backdrop-filter: blur(28px) saturate(155%);
  -webkit-backdrop-filter: blur(28px) saturate(155%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.23),
    0 28px 90px rgba(3, 4, 6, 0.58);
}

.lightbox-figure {
  min-width: 0;
  text-align: center;
}

.lightbox-stage {
  position: relative;
  display: grid;
  min-height: min(66dvh, 640px);
  place-items: center;
}

.lightbox-image {
  display: block;
  max-width: 100%;
  max-height: 68dvh;
  margin: 0 auto;
  border-radius: var(--radius-surface);
  object-fit: contain;
  box-shadow: 0 18px 62px rgba(3, 4, 6, 0.5);
  opacity: 1;
  transition: opacity 180ms ease;
}

.lightbox-figure[data-state="loading"] .lightbox-image,
.lightbox-figure[data-state="error"] .lightbox-image {
  opacity: 0;
}

.lightbox-status {
  position: absolute;
  inset: 0;
  display: none;
  place-items: center;
  color: var(--color-muted);
  font-family: var(--font-mono);
  font-size: 12px;
}

.lightbox-figure[data-state="loading"] .lightbox-status,
.lightbox-figure[data-state="error"] .lightbox-status {
  display: grid;
}

.lightbox-caption {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 2px 0;
  color: var(--color-muted);
  font-size: 13px;
  text-align: left;
}

.lightbox-source {
  white-space: nowrap;
}

#lightbox-source {
  color: var(--color-accent-2);
  white-space: nowrap;
}

.lightbox-control {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 50%;
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.08);
  font: 500 20px/1 var(--font-sans);
  cursor: pointer;
  transition:
    transform 520ms var(--spring-ease),
    color 180ms ease,
    background 180ms ease;
}

.lightbox-control:active {
  transform: scale(0.9);
}

.lightbox-close {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2;
}

/* Liquid glass: layered translucency, refraction edges, vibrant foreground. */
:root[data-theme="liquid-glass"] {
  --color-bg: #0c0e12;
  --color-surface: rgba(26, 29, 36, 0.62);
  --color-surface-2: rgba(39, 43, 52, 0.55);
  --color-border: rgba(255, 255, 255, 0.1);
  --color-border-strong: rgba(255, 255, 255, 0.18);
  --color-text: #eeede8;
  --color-muted: #aaabb2;
  --color-faint: #898b94;
}

:root[data-theme="liquid-glass"] body {
  background:
    radial-gradient(circle at 82% 8%, rgba(69, 180, 141, 0.1), transparent 30%),
    radial-gradient(circle at 5% 36%, rgba(209, 191, 174, 0.09), transparent 32%),
    var(--color-bg);
}

:root[data-theme="liquid-glass"] nav .container,
:root[data-theme="liquid-glass"] #hero .container,
:root[data-theme="liquid-glass"] .project-card,
:root[data-theme="liquid-glass"] .cert-item {
  border: 1px solid rgba(255, 255, 255, 0.11);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.018)),
    rgba(21, 23, 29, 0.5);
  backdrop-filter: blur(24px) saturate(150%) contrast(1.03);
  -webkit-backdrop-filter: blur(24px) saturate(150%) contrast(1.03);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.15),
    inset 0 -1px 0 rgba(255, 255, 255, 0.03),
    0 22px 62px rgba(3, 4, 6, 0.2);
}

:root[data-theme="liquid-glass"] nav.scrolled .container {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.11), rgba(255, 255, 255, 0.025)),
    rgba(17, 19, 24, 0.72);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.17),
    0 14px 42px rgba(3, 4, 6, 0.3);
}

:root[data-theme="liquid-glass"] #hero .container {
  position: relative;
  overflow: hidden;
}

:root[data-theme="liquid-glass"] #hero .container::before {
  content: "";
  position: absolute;
  inset: 1px;
  border-radius: calc(var(--radius-panel) - 1px);
  background:
    radial-gradient(circle at 84% 4%, rgba(255, 255, 255, 0.18), transparent 25%),
    linear-gradient(105deg, rgba(255, 255, 255, 0.04), transparent 42%);
  pointer-events: none;
}

:root[data-theme="liquid-glass"] #hero .container > * {
  position: relative;
}

:root[data-theme="liquid-glass"] .project-card:hover {
  border-color: rgba(69, 180, 141, 0.28);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.105), rgba(255, 255, 255, 0.025)),
    rgba(24, 27, 33, 0.62);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    0 30px 76px rgba(3, 4, 6, 0.36);
}

:root[data-theme="liquid-glass"] .cta-pill,
:root[data-theme="liquid-glass"] .chip,
:root[data-theme="liquid-glass"] .metric,
:root[data-theme="liquid-glass"] .skill-tag,
:root[data-theme="liquid-glass"] .marquee-group span {
  border-color: rgba(255, 255, 255, 0.12);
  background: rgba(255, 255, 255, 0.055);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

:root[data-theme="liquid-glass"] .cta-pill--primary {
  color: var(--color-on-accent);
  border-color: var(--color-accent);
  background: var(--color-accent);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.42),
    0 10px 24px rgba(209, 191, 174, 0.15);
}

/* Neumorphism: opaque soft surfaces with paired light and dark shadows. */
:root[data-theme="neumorphism"] {
  --color-bg: #181a20;
  --color-surface: #1c1f26;
  --color-surface-2: #20232b;
  --color-border: rgba(255, 255, 255, 0.055);
  --color-border-strong: rgba(255, 255, 255, 0.1);
  --color-text: #ebeae5;
  --color-muted: #a8a8ae;
  --color-faint: #898a91;
}

:root[data-theme="neumorphism"] .ambient-field {
  opacity: 0.16;
}

:root[data-theme="neumorphism"] .ambient-field::after {
  background: rgba(24, 26, 32, 0.72);
}

:root[data-theme="neumorphism"] nav .container,
:root[data-theme="neumorphism"] #hero .container,
:root[data-theme="neumorphism"] .project-card,
:root[data-theme="neumorphism"] .cert-item {
  border-color: transparent;
  background: var(--color-surface);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  box-shadow:
    14px 14px 34px rgba(6, 7, 10, 0.48),
    -12px -12px 30px rgba(48, 52, 63, 0.2),
    inset 1px 1px 0 rgba(255, 255, 255, 0.025);
}

:root[data-theme="neumorphism"] nav .container {
  box-shadow:
    8px 8px 20px rgba(6, 7, 10, 0.45),
    -7px -7px 18px rgba(48, 52, 63, 0.18);
}

:root[data-theme="neumorphism"] #hero .container {
  background:
    radial-gradient(circle at 86% 8%, rgba(69, 180, 141, 0.055), transparent 27%),
    var(--color-surface);
}

:root[data-theme="neumorphism"] .project-card:hover {
  border-color: transparent;
  box-shadow:
    18px 18px 42px rgba(6, 7, 10, 0.56),
    -15px -15px 38px rgba(48, 52, 63, 0.23),
    inset 1px 1px 0 rgba(255, 255, 255, 0.035);
}

:root[data-theme="neumorphism"] .cta-pill,
:root[data-theme="neumorphism"] .skill-tag,
:root[data-theme="neumorphism"] .marquee-group span {
  border-color: transparent;
  background: var(--color-surface);
  box-shadow:
    5px 5px 12px rgba(6, 7, 10, 0.44),
    -4px -4px 11px rgba(48, 52, 63, 0.18),
    inset 1px 1px 0 rgba(255, 255, 255, 0.025);
}

:root[data-theme="neumorphism"] .cta-pill:hover,
:root[data-theme="neumorphism"] .skill-tag:hover {
  box-shadow:
    7px 7px 15px rgba(6, 7, 10, 0.5),
    -6px -6px 14px rgba(48, 52, 63, 0.21);
}

:root[data-theme="neumorphism"] .cta-pill:active {
  box-shadow:
    inset 4px 4px 10px rgba(6, 7, 10, 0.5),
    inset -3px -3px 9px rgba(48, 52, 63, 0.15);
}

:root[data-theme="neumorphism"] .cta-pill--primary {
  color: var(--color-on-accent);
  background: var(--color-accent);
  box-shadow:
    6px 6px 16px rgba(6, 7, 10, 0.48),
    -5px -5px 14px rgba(48, 52, 63, 0.19),
    inset 0 1px 0 rgba(255, 255, 255, 0.36);
}

:root[data-theme="neumorphism"] .chip,
:root[data-theme="neumorphism"] .metric {
  border-color: transparent;
  background: var(--color-bg);
  box-shadow:
    inset 3px 3px 7px rgba(6, 7, 10, 0.45),
    inset -2px -2px 6px rgba(48, 52, 63, 0.13);
}

:root[data-theme="neumorphism"] .hero-photo {
  border: 8px solid var(--color-surface);
  box-shadow:
    12px 12px 28px rgba(6, 7, 10, 0.53),
    -10px -10px 24px rgba(48, 52, 63, 0.21);
}

:root[data-theme="neumorphism"] .timeline-line::after {
  background: #14161b;
  box-shadow: 1px 0 rgba(255, 255, 255, 0.045);
}

:root[data-theme="neumorphism"] .lightbox-shell {
  border-color: transparent;
  background: var(--color-surface);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  box-shadow:
    22px 22px 60px rgba(4, 5, 7, 0.62),
    -16px -16px 46px rgba(48, 52, 63, 0.18);
}

/*
  Dark liquid material: a web approximation built from translucent layers,
  refractive inner edges, saturated backdrop color, and high-contrast type.
*/
:root[data-theme="liquid-glass"] {
  color-scheme: dark;
  --color-bg: #070b10;
  --color-surface: rgba(13, 20, 27, 0.64);
  --color-surface-2: rgba(25, 36, 43, 0.58);
  --color-border: rgba(202, 255, 238, 0.11);
  --color-border-strong: rgba(202, 255, 238, 0.2);
  --color-text: #ecf7f3;
  --color-muted: #a9bbb7;
  --color-faint: #899d98;
  --color-accent: #5ee0b7;
  --color-accent-hover: #7af0ca;
  --color-accent-soft: rgba(94, 224, 183, 0.13);
  --color-accent-2: #5ee0b7;
  --color-on-accent: #07110f;
  --focus-ring: 0 0 0 4px rgba(94, 224, 183, 0.2);
}

:root[data-theme="liquid-glass"] body {
  background:
    radial-gradient(circle at 88% 4%, rgba(61, 164, 153, 0.18), transparent 31%),
    radial-gradient(circle at 7% 40%, rgba(94, 224, 183, 0.12), transparent 34%),
    linear-gradient(145deg, #070a0f 0%, #091019 52%, #070c11 100%);
}

:root[data-theme="liquid-glass"] .ambient-field::after {
  background:
    linear-gradient(180deg, rgba(4, 8, 12, 0.08), rgba(5, 10, 15, 0.74)),
    radial-gradient(circle at 50% 8%, transparent, rgba(4, 8, 12, 0.5) 76%);
}

:root[data-theme="liquid-glass"] .ambient-orb {
  filter: blur(86px);
  opacity: 0.25;
}

:root[data-theme="liquid-glass"] .ambient-orb--green {
  background: var(--color-accent);
}

:root[data-theme="liquid-glass"] .ambient-orb--gold {
  background: #2d847e;
}

:root[data-theme="liquid-glass"] section + section,
:root[data-theme="liquid-glass"] .capability-marquee,
:root[data-theme="liquid-glass"] footer {
  border-color: rgba(202, 255, 238, 0.07);
}

:root[data-theme="liquid-glass"] .hero-name,
:root[data-theme="liquid-glass"] .contact-heading,
:root[data-theme="liquid-glass"] .project-title,
:root[data-theme="liquid-glass"] .skill-group-label {
  font-family: var(--font-display);
}

:root[data-theme="liquid-glass"] .hero-name {
  letter-spacing: -0.045em;
  text-shadow: 0 14px 46px rgba(94, 224, 183, 0.12);
}

:root[data-theme="liquid-glass"] nav .container,
:root[data-theme="liquid-glass"] #hero .container,
:root[data-theme="liquid-glass"] .project-card,
:root[data-theme="liquid-glass"] .cert-item {
  border-color: rgba(202, 255, 238, 0.12);
  background:
    linear-gradient(135deg, rgba(238, 255, 249, 0.105), rgba(238, 255, 249, 0.018)),
    rgba(9, 15, 21, 0.58);
  backdrop-filter: blur(30px) saturate(165%) contrast(1.04);
  -webkit-backdrop-filter: blur(30px) saturate(165%) contrast(1.04);
  box-shadow:
    inset 0 1px 0 rgba(238, 255, 249, 0.16),
    inset 0 -1px 0 rgba(94, 224, 183, 0.035),
    0 24px 74px rgba(0, 15, 19, 0.34);
}

:root[data-theme="liquid-glass"] nav .container {
  box-shadow:
    inset 0 1px 0 rgba(238, 255, 249, 0.15),
    0 13px 42px rgba(0, 15, 19, 0.25);
}

:root[data-theme="liquid-glass"] nav.scrolled .container {
  background:
    linear-gradient(135deg, rgba(238, 255, 249, 0.12), rgba(238, 255, 249, 0.025)),
    rgba(7, 13, 18, 0.78);
  box-shadow:
    inset 0 1px 0 rgba(238, 255, 249, 0.18),
    0 16px 48px rgba(0, 13, 17, 0.42);
}

:root[data-theme="liquid-glass"] #hero .container {
  box-shadow:
    inset 0 1px 0 rgba(238, 255, 249, 0.17),
    0 34px 110px rgba(0, 18, 22, 0.38);
}

:root[data-theme="liquid-glass"] #hero .container::before {
  background:
    radial-gradient(circle at 84% 4%, rgba(184, 255, 232, 0.16), transparent 29%),
    linear-gradient(105deg, rgba(238, 255, 249, 0.055), transparent 44%);
}

:root[data-theme="liquid-glass"] .project-card:hover {
  border-color: rgba(94, 224, 183, 0.32);
  background:
    linear-gradient(135deg, rgba(238, 255, 249, 0.12), rgba(238, 255, 249, 0.025)),
    rgba(10, 18, 24, 0.7);
  box-shadow:
    inset 0 1px 0 rgba(238, 255, 249, 0.2),
    0 30px 86px rgba(0, 17, 22, 0.5);
}

:root[data-theme="liquid-glass"] .cert-item {
  box-shadow: inset 0 1px 0 rgba(238, 255, 249, 0.13);
}

:root[data-theme="liquid-glass"] .cta-pill,
:root[data-theme="liquid-glass"] .chip,
:root[data-theme="liquid-glass"] .metric,
:root[data-theme="liquid-glass"] .skill-tag,
:root[data-theme="liquid-glass"] .marquee-group span {
  border-color: rgba(202, 255, 238, 0.12);
  background: rgba(230, 255, 247, 0.055);
  box-shadow: inset 0 1px 0 rgba(238, 255, 249, 0.085);
  backdrop-filter: blur(14px) saturate(145%);
  -webkit-backdrop-filter: blur(14px) saturate(145%);
}

:root[data-theme="liquid-glass"] .cta-pill--primary {
  color: var(--color-on-accent);
  border-color: var(--color-accent);
  background: var(--color-accent);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.42),
    0 14px 30px rgba(49, 190, 145, 0.18);
}

:root[data-theme="liquid-glass"] .hero-photo {
  border-color: rgba(202, 255, 238, 0.24);
  box-shadow:
    inset 0 1px 0 rgba(238, 255, 249, 0.18),
    0 24px 64px rgba(0, 18, 22, 0.48);
}

:root[data-theme="liquid-glass"] .featured-badge {
  color: var(--color-accent);
  border-color: rgba(94, 224, 183, 0.24);
  background: rgba(94, 224, 183, 0.1);
}

:root[data-theme="liquid-glass"] .project-link {
  color: var(--color-accent);
  font-weight: 650;
  text-decoration: underline;
  text-decoration-color: rgba(94, 224, 183, 0.3);
  text-underline-offset: 4px;
}

:root[data-theme="liquid-glass"] .project-link:hover,
:root[data-theme="liquid-glass"] .project-link:focus-visible {
  color: var(--color-accent-hover);
  text-decoration-color: currentColor;
}

:root[data-theme="liquid-glass"] .skill-tag:hover {
  color: var(--color-text);
  border-color: rgba(94, 224, 183, 0.4);
  background: rgba(94, 224, 183, 0.11);
  box-shadow:
    inset 0 1px 0 rgba(238, 255, 249, 0.16),
    0 16px 34px rgba(0, 22, 25, 0.42);
}

:root[data-theme="liquid-glass"] .shelf-line {
  background: linear-gradient(to right,
    transparent 0%,
    rgba(202, 255, 238, 0.08) 15%,
    rgba(202, 255, 238, 0.2) 50%,
    rgba(202, 255, 238, 0.08) 85%,
    transparent 100%
  );
}

:root[data-theme="liquid-glass"] .shelf-line::after {
  background: linear-gradient(to bottom, rgba(94, 224, 183, 0.08), transparent);
}

:root[data-theme="liquid-glass"] .lightbox-shell {
  color: var(--color-text);
  border-color: rgba(202, 255, 238, 0.15);
  background:
    linear-gradient(135deg, rgba(238, 255, 249, 0.11), rgba(238, 255, 249, 0.025)),
    rgba(7, 13, 18, 0.82);
  box-shadow:
    inset 0 1px 0 rgba(238, 255, 249, 0.17),
    0 30px 96px rgba(0, 10, 14, 0.68);
}

:root[data-theme="liquid-glass"] .lightbox-control,
:root[data-theme="liquid-glass"] .project-carousel-control {
  color: var(--color-text);
  border-color: rgba(202, 255, 238, 0.16);
  background: rgba(14, 24, 31, 0.72);
  box-shadow:
    inset 0 1px 0 rgba(238, 255, 249, 0.13),
    0 12px 34px rgba(0, 14, 18, 0.42);
}

:root[data-theme="liquid-glass"] .lightbox-control:hover,
:root[data-theme="liquid-glass"] .project-carousel-control:hover {
  color: var(--color-on-accent);
  border-color: var(--color-accent);
  background: var(--color-accent);
}

:root[data-theme="liquid-glass"] .project-carousel-indicator {
  background: rgba(202, 255, 238, 0.2);
}

:root[data-theme="liquid-glass"] .project-carousel-indicator:hover {
  background: rgba(94, 224, 183, 0.56);
}

:root[data-theme="liquid-glass"] .project-carousel-indicator[aria-current="true"] {
  background: var(--color-accent);
}

/* Horizontal project coverflow. Existing project content remains untouched. */
#projects {
  overflow: hidden;
}

#projects .container {
  max-width: 1120px;
}

.project-carousel {
  --active-card-height: 540px;
  position: relative;
  padding-bottom: 4px;
  outline: none;
}

.project-carousel:focus-visible {
  border-radius: var(--radius-panel);
  box-shadow: var(--focus-ring);
}

.project-carousel.is-ready .project-carousel-viewport {
  overflow: hidden;
  padding: 12px 0 28px;
  perspective: 1500px;
  touch-action: pan-y;
}

#projects .project-carousel.is-ready .project-grid {
  position: relative;
  display: block;
  height: var(--active-card-height);
  min-height: 420px;
  transition: height 520ms var(--spring-ease);
  transform-style: preserve-3d;
}

#projects .project-carousel.is-ready .project-card {
  position: absolute;
  top: 0;
  left: 50%;
  width: min(710px, calc(100% - 210px));
  margin: 0;
  cursor: default;
  backface-visibility: hidden;
  will-change: transform, opacity;
  transform-origin: center center;
  transition:
    transform 600ms var(--spring-ease),
    opacity 240ms ease,
    filter 240ms ease,
    box-shadow 280ms ease,
    background 240ms ease,
    border-color 240ms ease;
}

#projects .project-carousel.is-ready .project-card[data-carousel-offset="0"] {
  z-index: 7;
  opacity: 1;
  filter: none;
  pointer-events: auto;
  transform: translate3d(-50%, 0, 60px) rotateY(0deg) scale(1);
}

#projects .project-carousel.is-ready .project-card[data-carousel-offset="-1"] {
  z-index: 4;
  opacity: 0.48;
  filter: saturate(0.76);
  pointer-events: auto;
  cursor: pointer;
  transform: translate3d(-100%, 12px, -100px) rotateY(12deg) scale(0.86);
}

#projects .project-carousel.is-ready .project-card[data-carousel-offset="1"] {
  z-index: 4;
  opacity: 0.48;
  filter: saturate(0.76);
  pointer-events: auto;
  cursor: pointer;
  transform: translate3d(0%, 12px, -100px) rotateY(-12deg) scale(0.86);
}

#projects .project-carousel.is-ready .project-card[data-carousel-offset="-2"] {
  z-index: 2;
  opacity: 0;
  pointer-events: none;
  transform: translate3d(-136%, 28px, -180px) rotateY(17deg) scale(0.72);
}

#projects .project-carousel.is-ready .project-card[data-carousel-offset="2"] {
  z-index: 2;
  opacity: 0;
  pointer-events: none;
  transform: translate3d(36%, 28px, -180px) rotateY(-17deg) scale(0.72);
}

#projects .project-carousel.is-ready .project-card[data-carousel-offset="far"] {
  z-index: 0;
  opacity: 0;
  pointer-events: none;
  transform: translate3d(-50%, 35px, -240px) scale(0.65);
}

.project-carousel-control {
  position: absolute;
  top: 46%;
  z-index: 12;
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.72);
  border-radius: 50%;
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.58);
  backdrop-filter: blur(20px) saturate(140%);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.9),
    0 12px 34px rgba(42, 91, 94, 0.14);
  font: 600 19px/1 var(--font-sans);
  cursor: pointer;
  transform: translateY(-50%);
  transition:
    transform 520ms var(--spring-ease),
    color 160ms ease,
    background 160ms ease;
}

.project-carousel:not(.is-ready) .project-carousel-control,
.project-carousel:not(.is-ready) .project-carousel-footer {
  display: none;
}

.project-carousel-control:active {
  transform: translateY(-50%) scale(0.92);
}

.project-carousel-prev { left: 16px; }
.project-carousel-next { right: 16px; }

.project-carousel-footer {
  display: flex;
  min-height: 34px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0;
}

.project-carousel-indicators {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
}

.project-carousel-indicator {
  width: 8px;
  height: 8px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(16, 58, 63, 0.22);
  cursor: pointer;
  transition:
    width 460ms var(--spring-ease),
    background 160ms ease,
    transform 460ms var(--spring-ease);
}

.project-carousel-indicator[aria-current="true"] {
  width: 28px;
  background: var(--color-accent);
}

.project-carousel-status {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

@supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
  :root[data-theme="liquid-glass"] nav .container,
  :root[data-theme="liquid-glass"] #hero .container,
  :root[data-theme="liquid-glass"] .project-card,
  :root[data-theme="liquid-glass"] .cert-item,
  :root[data-theme="liquid-glass"] .lightbox-shell {
    background: #0e171c;
  }
}

@media (prefers-reduced-transparency: reduce) {
  :root[data-theme="liquid-glass"] nav .container,
  :root[data-theme="liquid-glass"] #hero .container,
  :root[data-theme="liquid-glass"] .project-card,
  :root[data-theme="liquid-glass"] .cert-item,
  :root[data-theme="liquid-glass"] .lightbox-shell {
    background: #0e171c;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }
}

@media (max-width: 980px) {
  .hero-inner {
    flex-direction: column-reverse;
    align-items: center;
    gap: 24px;
  }

  .hero-text {
    width: 100%;
    text-align: center;
  }

  .hero-tagline {
    margin-right: auto;
    margin-left: auto;
  }

  .hero-open,
  .hero-stats,
  .hero-ctas {
    justify-content: center;
  }

  .hero-bio {
    margin-right: auto;
    margin-left: auto;
    text-wrap: balance;
  }
}

@media (max-width: 760px) {
  nav {
    padding: 8px 12px;
  }

  nav .container {
    width: 100%;
    min-height: 44px;
    padding: 9px 14px;
  }

  .nav-links {
    width: 100%;
    justify-content: space-between;
    gap: 10px;
  }

  #hero {
    min-height: auto;
    padding: 30px 0 58px;
  }

  #hero .container {
    width: calc(100% - 24px);
    padding: 28px 24px 30px;
  }

  .hero-inner {
    flex-direction: column-reverse;
    align-items: center;
    gap: 24px;
  }

  .hero-photo {
    width: 108px;
    height: 108px;
  }

  .project-card {
    padding: 24px 20px;
  }

  #projects .container {
    padding: 0 12px;
  }

  .project-carousel {
    padding-bottom: 66px;
  }

  .project-carousel.is-ready .project-carousel-viewport {
    padding: 24px 0 28px;
  }

  #projects .project-carousel.is-ready .project-card {
    width: calc(100% - 42px);
  }

  #projects .project-carousel.is-ready .project-card[data-carousel-offset="-1"] {
    opacity: 0.24;
    transform: translate3d(-116%, 18px, -120px) rotateY(13deg) scale(0.82);
  }

  #projects .project-carousel.is-ready .project-card[data-carousel-offset="1"] {
    opacity: 0.24;
    transform: translate3d(16%, 18px, -120px) rotateY(-13deg) scale(0.82);
  }

  .project-carousel-control {
    top: auto;
    bottom: 4px;
    width: 42px;
    height: 42px;
    transform: none;
  }

  @media (hover: hover) and (pointer: fine) {
    .project-carousel-control:hover {
      transform: scale(1.06);
    }
  }

  .project-carousel-control:active {
    transform: scale(0.92);
  }

  .project-carousel-prev { left: 12px; }
  .project-carousel-next { right: 12px; }

  .project-carousel-footer {
    min-height: 58px;
    padding: 0 58px;
  }

  .lightbox-shell {
    grid-template-columns: 42px minmax(0, 1fr) 42px;
    gap: 6px;
    padding: 64px 10px 18px;
  }

  .lightbox-control {
    width: 38px;
    height: 38px;
  }

  .lightbox-close {
    top: 12px;
    right: 12px;
  }

  .lightbox-caption {
    flex-direction: column;
    gap: 6px;
  }

  .lightbox-stage {
    min-height: min(58dvh, 520px);
  }
}

@media (max-width: 620px) {
  .hero-open {
    white-space: normal;
    text-wrap: balance;
  }
}

@media (max-width: 460px) {
  .hero-tagline {
    white-space: normal;
    text-wrap: balance;
  }

  .scramble-text [aria-hidden="true"] {
    white-space: normal;
  }
}

@media (max-width: 430px) {
  .nav-links a {
    font-size: 11px;
  }

  #hero .container {
    padding: 24px 18px 26px;
  }

  .hero-stats {
    display: grid;
    gap: 4px;
  }

  .lightbox-shell {
    grid-template-columns: 1fr 1fr;
  }

  .lightbox-figure {
    grid-column: 1 / -1;
    grid-row: 1;
  }

  .lightbox-prev,
  .lightbox-next {
    justify-self: center;
  }

  .lightbox-prev { grid-column: 1; }
  .lightbox-next { grid-column: 2; }
}

/* Hover-only motion, gated so a tap on touch can't leave an element stuck lifted/scaled. */
@media (hover: hover) and (pointer: fine) {
  .nav-links a:hover::after {
    right: 0;
  }

  .hero-photo-button:hover {
    transform: translateY(-5px) scale(1.025);
  }

  .cta-pill:hover {
    transform: translateY(-2px);
  }

  .skill-tag:hover {
    z-index: 3;
    transform: translateY(-8px) scale(1.15);
  }

  .project-card:hover {
    transform: translateY(-5px) scale(1.004);
  }

  .marquee-window:hover .marquee-track {
    animation-play-state: paused;
  }

  .lightbox-control:hover {
    color: var(--color-on-accent);
    background: var(--color-accent-2);
    transform: scale(1.08);
  }

  .project-carousel-control:hover {
    color: var(--color-on-accent);
    background: var(--color-accent);
    transform: translateY(-50%) scale(1.08);
  }

  .project-carousel-indicator:hover {
    background: rgba(8, 118, 109, 0.5);
    transform: scale(1.2);
  }
}

@media (prefers-reduced-motion: reduce) {
  .ambient-orb,
  .marquee-track {
    animation: none;
  }

  .marquee-window {
    overflow-x: auto;
    mask-image: none;
    -webkit-mask-image: none;
  }

  .marquee-group[aria-hidden="true"] {
    display: none;
  }

  .lightbox,
  .lightbox.closing {
    transform: none;
  }

  #projects .project-grid,
  #projects .project-card,
  .project-carousel-control,
  .project-carousel-indicator {
    transition: none;
  }

  .skill-tag,
  .skill-tag:hover,
  .skill-tag:active {
    transform: none;
    transition: none;
  }
}